1. Title of Derivative Security (Instr. 4) |
2. Date Exercisable and Expiration Date (Month/Day/Year) |
3. Title and Amount of Securities Underlying Derivative Security (Instr. 4) |
4. Conversion or Exercise Price of Derivative Security |
5. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 5) |
6. Nature of Indirect Beneficial Ownership (Instr. 5) |
Date Exercisable |
Expiration Date |
Title |
Amount or Number of Shares |
Series A Convertible Preferred Stock
|
Â
(1)
|
Â
(1)
|
Common Stock
|
1,037,036
(3)
|
$
(2)
|
I
|
See Footnote
(3)
|
Series B Convertible Preferred Stock
|
Â
(1)
|
Â
(1)
|
Common Stock
|
977,850
(4)
|
$
(2)
|
I
|
See Footnote
(4)
|
Series D Convertible Preferred Stock
|
Â
(1)
|
Â
(1)
|
Common Stock
|
194,075
(5)
|
$
(2)
|
I
|
See Footnote
(5)
|
Stock Option (Right to Buy)
|
Â
(6)
|
06/16/2019 |
Common Stock
|
10,000
|
$
8.72
|
D
|
Â
|
* |
If the form is filed by more than one reporting person, see Instruction 5(b)(v). |
** |
Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a). |
(1) |
These securities are preferred stock of the Issuer and do not have an expiration date. These securities will automatically convert into shares of common stock upon the closing of the Issuer's initial public offering. |
(2) |
Each share of Series A Convertible Preferred Stock, Series B Convertible Preferred Stock and Series D Convertible Preferred Stock will convert automatically into shares of Common Stock on a 0.25 for 1 basis immediately prior to the closing of the Issuer's initial public offering. |
(3) |
The shares, on a post-conversion basis, are held as follows: 701,037 by MPM BioVentures II-QP, L.P. ("BV II QP"), 77,259 by MPM BioVentures II, L.P. ("BV II"), 11,926 by MPM Asset Management Investors 2002 BVII LLC ("AM 2002") and 246,814 by MPM BioVentures GmbH & Co. Parallel-Beteiligungs KG ("BV KG"). MPM Asset Management II, L.P. ("AM II GP") and MPM Asset Management II LLC ("AM II LLC") are the direct and indirect general partners of BV II QP, BV II and BV KG. The Reporting Person is an investment manager of AM II LLC and AM 2002. The Reporting Person disclaims beneficial ownership of the securities except to the extent of his pecuniary interest therein. |
(4) |
The shares, on a post-conversion basis, are held as follows: 661,027 by BV II QP, 72,850 by BV II, 11,245 by AM 2002 and 232,728 by BV KG. The Reporting Person disclaims beneficial ownership of the securities except to the extent of his pecuniary interest therein. |
(5) |
The shares, on a post-conversion basis, are held as follows: 131,196 by BV II QP, 14,458 by BV II, 2,231 by AM 2002 and 46,190 by BV KG. The Reporting Person disclaims beneficial ownership of the securities except to the extent of his pecuniary interest therein |
(6) |
This option first became exercisable on July 31, 2009 and vests over a one-year period in equal monthly installments. |